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CONNECTION

Connect a Fein 30 mm tool port to a 1-1/4 in shop-vac hose

How to join a Fein 30 mm tool port to a 1-1/4 in shop-vac hose, and what stops it leaking dust.

Direct fit

These connect directly. A 1-1/4 in shop-vac hose seats on the Fein 30 mm tool port with no reducer.

END B31.8 mm1-1/4 in shop-vac hose (approx 1-1/2 cuff in OD, 1-1/4 in ID)
END A30 mmFein 30 mm tool port (1-3/16 in OD, 30 mm OD)

Rings drawn to scale from the measured diameters in the table below.

The two ends

End AFein 30 mm tool port (1-3/16 in OD, 30 mm OD)
End B1-1/4 in shop-vac hose (approx 1-1/2 cuff in OD, 1-1/4 in ID)
Fit typemale port into hose cuff
Reducer needednone, direct friction fit

Shop notes

The port measures about 30 mm and the hose about 32 mm, only 2 mm apart, so the port seats inside the hose as a friction fit. No reducer is needed for this pairing, so the Fein 30 mm tool port and the 1-1/4 in shop-vac hose connect directly.

It is a push fit, not a lock. Seat it fully and check it has not crept loose after a few minutes of vibration before you trust it on fine dust.